How Hearing Loss Affects Brain Health

Learn how untreated hearing loss impacts cognitive function and increases dementia risk—and what you can do to protect your brain.

The Brain’s Response to Hearing Loss

Our brain plays a central role in interpreting sound. When hearing loss limits the auditory input it receives, the brain adapts by rerouting information through alternative neural pathways—a process known as neuroplasticity.

Over time, this adaptation may reduce the brain’s reliance on the ears, weakening its ability to process sound. This can lead to reduced speech comprehension, communication difficulties, and cognitive decline.

Hearing Loss and Dementia Risk

Research from the National Institute on Aging shows a strong link between hearing loss and dementia. Older adults with untreated hearing loss are significantly more likely to experience cognitive deterioration. The more severe the hearing loss, the greater the risk.

Prevention and Early Intervention

Although hearing loss is often irreversible, proactive steps can help preserve hearing and protect brain health:

• Limit exposure to loud sounds (keep volume below 60% and duration under one hour)
• Use ear protection in noisy environments like concerts or sporting events
• Schedule annual hearing screenings starting at age 50

Early detection and treatment offer the best chance of maintaining cognitive function and communication skills.

Don’t Wait to Seek Help

Hearing loss often develops gradually, and many people wait 6 to 10 years before seeking treatment. By then, damage may be permanent—and hearing aids may be the only option.

Yet only 25% of those who could benefit from hearing aids actually use them. Talk to your audiologist about a hearing evaluation and explore devices that match your needs. Hearing loss is common, but losing cognitive function due to delayed treatment doesn’t have to be.

Protect your hearing and your brain, schedule a hearing screening today.